The Return of the Su

At the entrance of the Ma City First Detention Center, a young man in a worn white shirt stood there, looking around blankly.,When Qin Lang jumped into the river, he was just saved by the passing Zi Chen Xian Zun. Zi Chen Xian Zun saw that Qin Lang had unparalleled aptitude for cultivation, so he readily rescued him and took him as his disciple to the cultivating world.,The doctors in this world can't cure this poison. Who is it, and what kind of grudge do they have against their father to inflict such a deadly blow。